

class Test{
    public static Test testXY(double x,double y){
        Test t=new Test();
        return t;
    }

    public static Test testAR(double a,double r){
        Test t=new Test();
        return t;
    }
}


public class Demo4 {
    public static void main(String[] args) {
        Test t= Test.testAR(10,20);
        Test t2=Test.testXY(10,20);
    }
}
